Home / 889,157.81-1,333,065.94-289,761.05

Finding the Fourth Proportional to 889,157.81, 1,333,065.94 and 289,761.05

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Solution

The fourth proportional to 889,157.81, 1,333,065.94 and 289,761.05 is: 434,422.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,157.81 : 1,333,065.94 = 289,761.05 : x
  2. Step 2: Convert to fraction form
    889,157.81/1,333,065.94 = 289,761.05/x
  3. Step 3: Cross multiply
    889,157.81x = 1,333,065.94 × 289,761.05
  4. Step 4: Simplify right side
    889,157.81x = 386,270,579,103.91
  5. Step 5: Solve for x
    x = 386,270,579,103.91/889,157.81
  6. Step 6: Final answer
    x = 434,422.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.